Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Mostly Cloudy

82°F

28°C

Humidity 43%
Wind Speed SW 5 mph
Barometer 29.77 in (1007.1 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 16 Apr 5:56 pm EDT
Extended Forecast for

Mongaup Valley NY

  • Tonight

    Tonight: A slight chance of showers after 1am.  Mostly cloudy, with a low around 57. Southwest wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 57 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers after 1pm.  Mostly sunny, with a high near 73. Northwest wind 3 to 6 mph.  Chance of precipitation is 20%.

    High: 73 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Increasing clouds, with a low around 52. Calm wind.

    Low: 52 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 70. South wind 3 to 8 mph.

    High: 70 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 2am.  Mostly cloudy, with a low around 39. Southeast wind around 6 mph.  Chance of precipitation is 70%.

    Low: 39 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers.  High near 52. Chance of precipitation is 80%.

    High: 52 °F

    Showers

  • Sunday Night

    Sunday Night: Rain and snow showers likely before 11pm, then a chance of snow showers between 11pm and 2am.  Partly cloudy, with a low around 27. Chance of precipitation is 60%.

    Low: 27 °F

    Rain/Snow
    Likely then
    Chance Snow
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers after 1am. Mostly cloudy, with a low around 57. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
A slight chance of showers after 1pm. Mostly sunny, with a high near 73. Northwest wind 3 to 6 mph. Chance of precipitation is 20%.
Friday Night
Increasing clouds, with a low around 52. Calm wind.
Saturday
Partly sunny, with a high near 70. South wind 3 to 8 mph.
Saturday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 39. Southeast wind around 6 mph. Chance of precipitation is 70%.
Sunday
Showers. High near 52. Chance of precipitation is 80%.
Sunday Night
Rain and snow showers likely before 11pm, then a chance of snow showers between 11pm and 2am. Partly cloudy, with a low around 27. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 22.
Tuesday
Sunny, with a high near 53.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 37. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Mostly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.67°N 74.79°W (Elev. 1175 ft)
2:30 pm EDT Apr 16, 2026
6pm EDT Apr 16, 2026-6pm EDT Apr 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database